"Authorities now believe Rouns may have been thrown off her horse amid strong winds on Friday, and fell into the river. She did not know how to swim, Dutton
told the Independent.
'We believe something happened that spooked the horse to get it into the waters. We just don't know what yet,' the sheriff said, adding that he has ruled out foul play.
The sheriff went on to note that search teams uncovered her baseball cap upstream from where a GPS tracker and cellphone were found in a saddlebag, which they had used to piece together Rouns' activity through the recreation area.
'It somewhat confirms my postulation that there was a significant wind event that went through right as she got to the river's edge,' Dutton claimed.
'The hat was in the water,' he explained. 'We believe that was due to the significant winds.' "